diff --git a/src/org/linphone/LinphoneService.java b/src/org/linphone/LinphoneService.java
index 6e395df19..ba3d8e3b9 100644
--- a/src/org/linphone/LinphoneService.java
+++ b/src/org/linphone/LinphoneService.java
@@ -447,11 +447,11 @@ public final class LinphoneService extends Service implements LinphoneServiceLis
 			Log.i("Service not ready, discarding registration state change to ",state.toString());
 			return;
 		}
-		if (state == RegistrationState.RegistrationOk && LinphoneManager.getLc().getDefaultProxyConfig().isRegistered()) {
+		if (state == RegistrationState.RegistrationOk && LinphoneManager.getLc().getDefaultProxyConfig() != null && LinphoneManager.getLc().getDefaultProxyConfig().isRegistered()) {
 			sendNotification(IC_LEVEL_ORANGE, R.string.notification_registered);
 		}
 
-		if (state == RegistrationState.RegistrationFailed || state == RegistrationState.RegistrationCleared) {
+		if ((state == RegistrationState.RegistrationFailed || state == RegistrationState.RegistrationCleared) && (LinphoneManager.getLc().getDefaultProxyConfig() == null || !LinphoneManager.getLc().getDefaultProxyConfig().isRegistered())) {
 			sendNotification(IC_LEVEL_OFFLINE, R.string.notification_register_failure);
 		}